Starting fresh from the working pre-refactor code (d123d25), this is a clean
rewrite that preserves all the hard-won BLE reliability fixes while simplifying
the architecture. Key changes:
What's preserved (battle-tested, working):
- Exact same 16-step write sequence (DeviceName, Frame1, Frame2 iBeacon, Save)
- Same DX-Smart packet format (4E 4F CMD LEN DATA XOR)
- Response gating between writes (1s timeout, matches Android)
- Adaptive delays (1s for frame select/type, 0.8s for UUID, 0.5s base)
- FFE2 missing → full disconnect/reconnect (CoreBluetooth stale GATT cache)
- SaveConfig write-error = success (beacon reboots immediately)
- Disconnect recovery with write position resume
- Multi-password auth (555555, dx1234, 000000)
- Skip device info read (0x30 causes disconnects, MAC is optional)
- Skip extra frame disables (frames 3-6 untouched, fewer writes = fewer disconnects)
What's cleaned up:
- Removed dead device info provisioning code (was already skipped)
- Removed processDeviceInfoForProvisioning (dead code)
- Removed awaitingDeviceInfoForProvisioning flag
- Removed skipDeviceInfoRead flag
- Removed deviceInfoRetryCount (no longer needed)
- Consolidated charRediscovery into handleFFE2Missing()
- Renamed state vars for clarity (dxSmartWriteIndex → writeIndex, etc.)
- Extracted scheduleGlobalTimeout (was inline closure)
- Added cancelAllTimers() helper
- Reduced mutable state from ~30 vars to ~22
1652 lines → 1441 lines (-211 lines, -13%)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Schwifty
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